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thodg/libiconv/srclib/gettext.h

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  • Author : Bruno Haible
    Date : 2005-12-29 13:06:22
    Hash : 1f290a21
    Message : Update from GNU gettext.

  • srclib/gettext.h
  • /* Convenience header for conditional use of GNU <libintl.h>.
       Copyright (C) 1995-1998, 2000-2002, 2004-2005 Free Software Foundation, Inc.
    
       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU Library General Public License as published
       by the Free Software Foundation; either version 2, or (at your option)
       any later version.
    
       This program is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       Library General Public License for more details.
    
       You should have received a copy of the GNU Library General Public
       License along with this program; if not, write to the Free Software
       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
       USA.  */
    
    #ifndef _LIBGETTEXT_H
    #define _LIBGETTEXT_H 1
    
    /* NLS can be disabled through the configure --disable-nls option.  */
    #if ENABLE_NLS
    
    /* Get declarations of GNU message catalog functions.  */
    # include <libintl.h>
    
    #else
    
    /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
       chokes if dcgettext is defined as a macro.  So include it now, to make
       later inclusions of <locale.h> a NOP.  We don't include <libintl.h>
       as well because people using "gettext.h" will not include <libintl.h>,
       and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
       is OK.  */
    #if defined(__sun)
    # include <locale.h>
    #endif
    
    /* Many header files from the libstdc++ coming with g++ 3.3 or newer include
       <libintl.h>, which chokes if dcgettext is defined as a macro.  So include
       it now, to make later inclusions of <libintl.h> a NOP.  */
    #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
    # include <cstdlib>
    # if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
    #  include <libintl.h>
    # endif
    #endif
    
    /* Disabled NLS.
       The casts to 'const char *' serve the purpose of producing warnings
       for invalid uses of the value returned from these functions.
       On pre-ANSI systems without 'const', the config.h file is supposed to
       contain "#define const".  */
    # define gettext(Msgid) ((const char *) (Msgid))
    # define dgettext(Domainname, Msgid) ((const char *) (Msgid))
    # define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
    # define ngettext(Msgid1, Msgid2, N) \
        ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
    # define dngettext(Domainname, Msgid1, Msgid2, N) \
        ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
    # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
        ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
    # define textdomain(Domainname) ((const char *) (Domainname))
    # define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
    # define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
    
    #endif
    
    /* A pseudo function call that serves as a marker for the automated
       extraction of messages, but does not call gettext().  The run-time
       translation is done at a different place in the code.
       The argument, String, should be a literal string.  Concatenated strings
       and other string expressions won't work.
       The macro's expansion is not parenthesized, so that it is suitable as
       initializer for static 'char[]' or 'const char[]' variables.  */
    #define gettext_noop(String) String
    
    /* The separator between msgctxt and msgid in a .mo file.  */
    #define GETTEXT_CONTEXT_GLUE "\004"
    
    /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
       MSGID.  MSGCTXT and MSGID must be string literals.  MSGCTXT should be
       short and rarely need to change.
       The letter 'p' stands for 'particular' or 'special'.  */
    #define pgettext(Msgctxt, Msgid) \
      pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
    #define dpgettext(Domainname, Msgctxt, Msgid) \
      pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
    #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
      pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
    #define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
      npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
    #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
      npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
    #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
      npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
    
    #ifdef __GNUC__
    __inline
    #else
    #ifdef __cplusplus
    inline
    #endif
    #endif
    static const char *
    pgettext_aux (const char *domain,
    	      const char *msg_ctxt_id, const char *msgid,
    	      int category)
    {
      const char *translation = dcgettext (domain, msg_ctxt_id, category);
      if (translation == msg_ctxt_id)
        return msgid;
      else
        return translation;
    }
    
    #ifdef __GNUC__
    __inline
    #else
    #ifdef __cplusplus
    inline
    #endif
    #endif
    static const char *
    npgettext_aux (const char *domain,
    	       const char *msg_ctxt_id, const char *msgid,
    	       const char *msgid_plural, unsigned long int n,
    	       int category)
    {
      const char *translation =
        dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
      if (translation == msg_ctxt_id || translation == msgid_plural)
        return (n == 1 ? msgid : msgid_plural);
      else
        return translation;
    }
    
    #endif /* _LIBGETTEXT_H */